Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

Densities, , refractive indices, n, and volumetric heat capacities, Cp/V, have been measured at 298.15 K over the whole concentration range for the binary mixtures {1,3-dioxolane + 2-pentanone, + 2-heptanone, or + cyclopentanone}. From the experimental data, excess molar volumes, VE, excess molar refractions, RE, and excess molar isobaric heat capacities, , were calculated. Deviations of refractive index from ideality were determined by using a deviation function defined on a volume fraction basis, n. Excess molar enthalpies HE have been measured at the same temperature for the systems {1,3-dioxolane + 2-pentanone, + 2-heptanone, + cyclopentanone, or + cyclohexanone}. The results are discussed in terms of destruction of quadrupolar and dipolar order, setting up of unlike-pair interactions, degrees of free volume, and influence of the size and shape of the ketone. Moreover, data obtained in this work and earlier parts of the series are comprehensively examined.